Home / 341,438,861.47-471,197,049.18-209,254,315.20

Finding the Fourth Proportional to 341,438,861.47, 471,197,049.18 and 209,254,315.20

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Solution

The fourth proportional to 341,438,861.47, 471,197,049.18 and 209,254,315.20 is: 288,777,954.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,438,861.47 : 471,197,049.18 = 209,254,315.20 : x
  2. Step 2: Convert to fraction form
    341,438,861.47/471,197,049.18 = 209,254,315.20/x
  3. Step 3: Cross multiply
    341,438,861.47x = 471,197,049.18 × 209,254,315.20
  4. Step 4: Simplify right side
    341,438,861.47x = 98,600,015,850,421,616
  5. Step 5: Solve for x
    x = 98,600,015,850,421,616/341,438,861.47
  6. Step 6: Final answer
    x = 288,777,954.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.